Rob Cowell's questions

Struggling to get my head around the various relaying controls in the exim4 config.

I can send email from my server, I can send email from home and work (because I explicitly added suitable netblocks for it), but I can't get a program I wrote to send email to a googlemail address - I get a 550 relay not permitted.

What I'm aiming for is to be able to send email to any (valid) email address from any server, providing that I supply a suitable username and password. I suspect SASL comes into play here, but I'm currently confused between domains I can relay for and machines I can relay for.

Anyone able to unravel this?

[NOTE: Ubuntu box, so Debian-style split config for exim4]

Some miscreant is using non-existent accounts on my domain as a forged sender for spam emails (i.e., [email protected]).

All the out-of-office and spam rejection emails are coming back to me (since my domain is set up to pass me anything addressed to my domain name).

The domain email is actually set up to redirect to Gmail, which is doing an admirable job at coping with the deluge (50k+ emails a week at least) but there's still a lot its not filtering.

The result of this is that I now no longer have my email for this account coming to my iPhone, as its incessant.

What can I do to reclaim normality? Not having all domain email come to me is the first thing that springs to mind (i.e, if the account doesn't exists, ignore it).

Anyone else got further advice?

Edit: Suddenly occurred to me - is this better asked on ServerFault?